Il 08/12/2011 18.17, Carlos Alvarez ha scritto:
If you use an ethernet cable, you are using a pair of wires that is not twisted together, removing the electrical advantage of twisted-pair cable.
This is wrong, in both T568A or T568B ethernet pins 1/2 and 4/5 runs on a properly twisted pair. Also 120 Ohm impedance is matching the ISDN pri specification. If a straight pri cable is needed then a straight ethernet cable fits the job (not the same for a pri cross cable vs an eth cross cable).
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